Electronic Lock Dust Valve Ring Integration
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Solution Overview
Problem
Electronic locks without dust valves tend to get dirty quickly and known dust valves are not suitable for locks with a ring mechanism, causing issues with key insertion and rotation due to interference with the ring's operation.
Innovation Solution
An electronic lock design incorporating a dust valve integrated with the ring mechanism that allows key insertion and withdrawal only in predetermined positions, using a split elastic ring and movable jaws to minimize interference and maintain correct positioning, while also preventing dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a known dust valve is installed in the lock, then dust entry is prevented, but the rotation of the ring is strongly prevented or slowed down
Solution Approach 1:
The dust valve is segmented into two separate functional components: a valve body integrated into the ring that moves with the ring during rotation, and a separate blocking element (valve flap or piston) that provides the dust sealing function. This segmentation allows the ring to rotate freely while the dust sealing mechanism operates independently, resolving the contradiction between dust protection and ring rotation ease.
Solution Approach 2:
An intermediary element (the valve body or guide structure) is introduced between the dust valve components and the ring rotation mechanism. This intermediary allows the dust sealing function to be maintained while minimizing interference with ring rotation, as the valve body is designed to move synchronously with the ring or provides a guided path for the blocking element.
2Object-affected harmful factors
If the valve bears against the rear face of the ring to immobilize it, then dust sealing is maintained, but key insertion becomes difficult when ring is not in retracted position
Solution Approach 1:
The dust valve blocking element is designed to be dynamic rather than static. The valve flap or piston can move between a blocking position (when no key is present) and an open position (when key is inserted). This dynamic behavior allows the system to maintain dust sealing during normal operation while automatically opening to permit key insertion, resolving the contradiction between sealing effectiveness and ease of key insertion.
Solution Approach 2:
The valve is designed with preliminary anti-action by incorporating a spring or elastic element that automatically opens the valve path when force is applied (during key insertion). This preliminary design ensures that the dust sealing mechanism does not permanently block key insertion, as the blocking action is automatically reversed when needed, preventing the operational difficulty before it occurs.
3Manufacturing precision
If the ring prevents blade rotation during key insertion, then electrical terminal positioning is improved, but the structure becomes more complex
Solution Approach 1:
The dust valve body is merged with the ring structure, combining two functional elements (dust sealing and blade guidance) into a single integrated component. This merging reduces the overall number of parts and simplifies the lock structure while maintaining the blade rotation prevention function, as the valve body itself serves as the guiding surface for the key blade.
Solution Approach 2:
The ring is designed with multi-functionality, serving both as a dust sealing mechanism (through the integrated valve body) and as a blade guidance/rotation prevention mechanism. This universal design eliminates the need for separate components for each function, reducing structural complexity while achieving precise electrical terminal positioning through the ring's geometric constraints.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution prevents key withdrawal outside predetermined positions, reduces fouling, and extends the battery life of the key or lock by ensuring proper key alignment and minimizing dust entry, thus enhancing the lock's robustness and longevity.
Implementation Method 1
a split elastic ring
Implementation Method 2
which permanently pushes back a valve towards the orifice
Data Source
Figure 1~3
Figure 4~8
Figure 9~14
AI summary
This lock includes a ring mounted to rotate freely around a key insertion axis. This ring comprises a straight tube (202), a conduit (240-242), and a pin (244-245) to prevent the key from being removed from the lock. The ring further includes: - a dust flap (210) movable between: • a closed position in which the dust flap obstructs at least 80% of the cross-section of the straight tube (202), and • an open position in which the dust flap exposes the cross-section of the straight tube and allows the passage of a key blade, and - at least one spring (232, 234) that continuously forces the dust flap towards its closed position.